Results 101 to 110 of about 3,039 (204)

Quantitative abdominal sodium MRI combined with 32‐channel proton pTx MRI at 7 Tesla in a large field‐of‐view

Magnetic Resonance in Medicine, Volume 94, Issue 5, Page 1930-1945, November 2025.
Abstract Purpose To combine large field‐of‐view abdominal 1H$$ {}^1\mathrm{H} $$ and quantitative sodium ( 23Na$$ {}^{23}\mathrm{Na} $$) MRI in the same position at 7 T to enable the quantification of the tissue sodium concentration via 23Na$$ {}^{23}\mathrm{Na} $$ MRI and the anatomical assignment in 1H$$ {}^1\mathrm{H} $$ images without repositioning
Anna K. Scheipers, Johannes A. Grimm, Jana Losch, Stephan Orzada, Thomas M. Fiedler, Armin M. Nagel, Sebastian Schmitter, Mark E. Ladd, Tanja Platt   +8 more
wiley   +1 more source

AcidoCEST-UTE MRI for the Assessment of Extracellular pH of Joint Tissues at 3 T. [PDF]

, 2019
ObjectivesThe goal of this study was to demonstrate feasibility of measuring extracellular pH in cartilage and meniscus using acidoCEST technique with a 3-dimensional ultrashort echo time readout (acidoCEST-UTE) magnetic resonance imaging (MRI).Materials
Chang, Eric Y, Du, Jiang, High, Rachel A, Jerban, Saeed, Ma, Ya-Jun, Tang, Qingbo, Wan, Lidi   +6 more
core  

Quantitative ultrashort echo time magnetization transfer (UTE-MT) for diagnosis of early cartilage degeneration: comparison with UTE-T2* and T2 mapping

Quantitative Imaging in Medicine and Surgery, 2020
To investigate the feasibility of using quantitative ultrashort echo time magnetization transfer (UTE-MT) technique in diagnosing early cartilage degeneration and to compare the technique's diagnostic efficacy with UTE-T2* mapping and T2 mapping.Twenty human anterolateral condyle specimens with degeneration were obtained from volunteers undergoing ...
Jiawei, Yang, Hongda, Shao, Yajun, Ma, Lidi, Wan, Yixuan, Zhang, Junjie, Jiang, Jiang, Du, Guangyu, Tang   +7 more
openaire   +3 more sources

Impact of tissue sample preparation methods on myelin‐sensitive quantitative MR imaging

Magnetic Resonance in Medicine, Volume 94, Issue 5, Page 2071-2085, November 2025.
Abstract Purpose Validation of quantitative MRI (qMRI) parameters with histology is often done with ex vivo fixed tissue samples. Freezing is another common form of tissue preservation, but the effects of freezing and thawing tissue on myelin‐sensitive quantitative MRI parameters and their correlation with histology require further analysis.
Amaya Murguia, Scott D. Swanson, Ulrich Scheven, Andrea Jacobson, Jon‐Fredrik Nielsen, Jeffrey A. Fessler, Navid Seraji‐Bozorgzad   +6 more
wiley   +1 more source

Are Collagen Protons Visible with the Zero Echo Time (ZTE) Magnetic Resonance Imaging Sequence: A D₂O Exchange and Freeze-Drying Study

Bioengineering
It is known that ultrashort echo time (UTE) magnetic resonance imaging (MRI) sequences can detect signals from water protons but not collagen protons in short T2 species such as cortical bone and tendons.
Tan Guo, Dina Moazamian, Arya A. Suprana, Saeed Jerban, Eric Y. Chang, Yajun Ma, Michael Carl, Min Chen, Jiang Du   +8 more
doaj   +1 more source

Cardiac 4D phase-contrast CMR at 9.4 T using self-gated ultra-short echo time (UTE) imaging

Journal of Cardiovascular Magnetic Resonance, 2017
Background Time resolved 4D phase contrast (PC) cardiovascular magnetic resonance (CMR) in mice is challenging due to long scan times, small animal ECG-gating and the rapid blood flow and cardiac motion of small rodents.
M. Krämer, A. G. Motaal, K-H. Herrmann, B. Löffler, J. R. Reichenbach, G. J. Strijkers, V. Hoerr   +6 more
doaj   +1 more source

Cardiac-respiratory self-gated cine ultra-short echo time (UTE) cardiovascular magnetic resonance for assessment of functional cardiac parameters at high magnetic fields

, 2014
Background: To overcome flow and electrocardiogram-trigger artifacts in cardiovascular magnetic resonance (CMR), we have implemented a cardiac and respiratory self-gated cine ultra-short echo time (UTE) sequence.
Faber, C. (Cornelius), Hörr, V. (Verena), Kuhlmann, M.T. (Michael), Nagelmann, N. (Nina), Nauerth, A. (Arno), Stypmann, J. (Jörg)   +5 more
core   +1 more source

Sodium ((23)Na) ultra-short echo time imaging in the human brain using a 3D-Cones trajectory [PDF]

, 2013
Object: Sodium magnetic resonance imaging ((23)Na-MRI) of the brain has shown changes in (23)Na signal as a hallmark of various neurological diseases such as stroke, Alzheimer's disease, Multiple Sclerosis and Huntington's disease.
Clemence, M, Golay, X, Riemer, F, Solanky, BS, Stehning, C, Wheeler-Kingshott, CA   +5 more
core   +2 more sources

Using Positive End‐Expiratory Pressure to Predict and Quantify Tracheobronchomalacia in Grade 3 Bronchopulmonary Dysplasia

Pediatric Pulmonology, Volume 60, Issue 11, November 2025.
ABSTRACT Objectives: Tracheobronchomalacia (TBM) is common in Grade 3 Bronchopulmonary Dysplasia (BPD), but there is wide variation in frequency and method of evaluation. Objective quantitative methods are needed for translational studies and future drug trials.
Stephanie A. Adaikalam, Rebecca S. Rose, Ibrahim A. Sammour, Sarah E. Bauer, Gregory S. Montgomery, A. Ioana Cristea   +5 more
wiley   +1 more source

PET-MR attenuation correction using an ultrashort echo time sequence [PDF]

, 2009
C
Keereman, Vincent
core   +1 more source